Improvement in car-axle boxes



WILLIAM e. PARR. Improvement in Car Axle Boxes. No. 1191,!877. JeffPatented oct. 1o, 13714.

cwi) feu/ f iv.

PATENT VFFICE.

IMPROVEMENT IN CAR-AXLE BOXES.

Specification forming part of Letters Patent No. 119,877, dated October10, 1871.

To all whom it may concern:

Be it known that I, VILLIAM G. PARR, of Normal, in the county of McLeanand in the State of Illinois, have invented certain new andusefulImprovements in Oar-Axle Boxes; and do hereby declare that the followingis a full, clear, and exact description th ereof, reference being had tothe accompanying drawing and to the letters of reference marked thereonmaking a part of this specication.

The nature of my invention consists in the construction and arrangementof a cap for car-axle boxes, with the mode of fastening the same, aswill be hereinafter more fully set forth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in whicl1-Figure 1 is a side view, and Fig. 2 a horizontal section.

A represents the car-axle box, provided with a concave opening at itsouter end. On the sides of this opening are concave rims a c, which fitin concave grooves b b on the inside of the cap B. When put on the capis held by a pivoted steel spring, C. The cover or cap slides on theconcave rim, thus obvi ating the necessity of the bolt now generallyused. The rim also, it will be noticed, prevents the cover from beingthrown off or up by the upward motion of the car. It breaks the upwardtendency of the cover when the car is in motion, and what little slidethere otherwise might be to the cover is obviated by the catch O at thetop of the box. In other Words, the cover, working on a curve and heldin place by the rim, is not readily thrown out or opened by the upwardand downward motion of the car, and the little tendency of the cover toopen is overcome by the spring fastening at the top of the box.

The bottom of the cover can rest on leather or be otherwise packed, ifdesired. In place of the concave rim and concave groove, as abovedescribed, the rim and groove may be cinved upward, making the sides ofthe box and cap to correspond, which will answer precisely the sameplnpose and work in the same manner.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, isl A cover or cap for car-axleboxes, working on a curve and held in place by a rim on the box, incombination with a catch or other fastening on top, substantially as andfor the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this3d day of July, 1871. WILLIAM G. PARR.

Witnesses:

Tnos. SLADE,

A. N. MARR. (122)

